Private Key

DeFi has reached its most dangerous moment: the real vulnerabilities are not in the code

In April 2026, the DeFi sector experienced multiple attacks exploiting non-code vulnerabilities, resulting in losses exceeding $625 million. Attackers utilized administrator private keys, cross-chain bridge validators, and social engineering tactics, revealing that DeFi security issues lie not in the code but in operations and mental models. The industry needs to reassess the definition of decentralization, emphasizing operational security and transparency. In the future, protocols must disclose operational leverage to ensure user awareness and establish insurable operational risk models.